Increased Biomass for Carbon Stock in Participatory Forest Managed Miombo Woodlands of Tanzania
Increased Biomass for Carbon Stock in Participatory Forest Managed Miombo Woodlands of Tanzania
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坦桑尼亚参与式森林管理的 Miombo 林地的碳储量生物量增加
DOI：
10.4172/2157-7625.1000182
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发表时间：
2016
期刊：
影响因子：
--
通讯作者：
Nyamoga Gz
中科院分区：
文献类型：
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作者：
L. Lusambo;Z. Lupala;F. Midtgaard;Y. Ngaga;Kessy Jf;Abdallah Jm;Kingazi Sp;F. Mombo;Nyamoga Gz
Miombo（赞比西稀树草原）林地是坦桑尼亚重要的森林植被。森林中含有的生物量对于缓解气候变化战略至关重要。然而，在参与性森林管理下碳固存和储存的生物量增加程度尚不清楚。了解这种生物量将有助于制定有效的气候变化缓解战略并促进可持续森林管理。这项研究涉及 276 个系统确定的同心样地，分布在 8 个 miombo 林地森林（4 个位于姆贝亚地区，4 个位于伊林加地区）。在这些地块中，145 块位于参与式管理森林中，131 块位于参考场景中，称为“一切照旧”(BAU) 或在附近选择的开放森林。主要发现是，与参考情景相比，大多数 PFM 森林的生物量显着增加（P < 0.05）。 PFM 森林的平均生物量从 48.05 吨/公顷 ± 0.03 增加到 37.91 吨/公顷 ± 0.19。同样，参考情景 BAU 森林的平均生物量为 37.91 吨/公顷 ± 0.11 至 15.79 吨/公顷 ± 0.13。这意味着参与式管理森林的平均碳储量（21.37 吨/公顷）高于参考情景（11.28 吨/公顷）。研究结果证明，坦桑尼亚 miombo 林地的参与式森林管理方法具有减缓气候变化战略的潜力。尽管在确定参考场景方面存在挑战，但这些发现提供了可以进行进一步研究的有用基准。
Miombo (Zambezian savanna) woodlands are important forest vegetation in Tanzania. The forests contain biomass which is vital for climate change mitigation strategy. However the extent of increasing biomass under participatory forest management for carbon sequestration and storage is not clear. Understanding of this biomass will aid development of effective climate change mitigation strategies and promote sustainable forest management. This study involved 276 systematically determined concentric sample plots laid out in eight miombo woodland forests (four in Mbeya region and four in Iringa region). Of these plots, 145 were laid in participatory managed forests and 131 in reference scenario, called business as usual (BAU) or open access forest selected in proximity. The main finding was that most of PFM forests had significant increase in biomass (P < 0.05) as compared to the reference scenario. Mean biomass increased from 48.05 t/ha ± 0.03 to 37.91 t/ha ± 0.19 in PFM forests. Likewise mean biomass was 37.91 t/ha ± 0.11 to15.79 t/ha ± 0.13 for reference scenario BAU forests. This implied higher average carbon stock in participatory managed forests (21.37 t/ha) against the reference scenario (11.28 t/ha). The results provide evidence that participatory forest management approach in miombo woodlands of Tanzania have potential for climate change mitigation strategies. Despite the challenge in determining reference scenario, these findings present useful benchmark against which further study can be performed.